On Fri, 2005-11-11 at 05:11 +0100, Peter Fuhrmann wrote: > I use the same settings for CKOPT and CKSELwith a Meag32, and it work fine. > There mgith be another chance: I guess Your Atmega just doesnt like your > Chrystal, so you could try using anotherone, maybe from some old hardware > that you've got flying around anyway.
Ah, thanks. I tried another crystal (same model though), no luck. Maybe the capacitors (22pf) are too big, I bought 15pf ones just in case, will try them... If the clock/fuse bits are correct, I guess it will eventually work, if I try enough capacitors/crystal combinations... > Or you Programm a second Atmel to > generate a 100kHz clock or something, and inject it to the XTAL1 pin of the > not working Atmel. I was often able to rescue mine that way Oh, thanks for that ! I just used my function generator to send a 1MHz clock to the XTAL1 pin, and the AVR is working again, and avrdude can talk to it ! :-) Phew, I have it back then... > You might need to tell your programming software to be slower than normal > then, Didn't even need to... apparently from 400KHz up, avrdude can talk to the AVR reliably, 350KHz works 50% of the time, and 300KHz and lower, doesn't work. I set my function generator to 1MHz to be safe. My generator is a bit old and at that frequency the square wave looks more like a sine, but somehow the AVR is happy with it... who said digital circuits were picky... > but I think you know how to do that. He he, you have a got a good memory... ;-) Regards, -- Vince _______________________________________________ AVR-chat mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/avr-chat
